BIO 210 final exam genetics | Questions and Answers
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Explain why Darwins theory of natural selection leads to survival of the
fittest offspring. Discuss what this means for future generations -
ANSWER>>> The number of offspring produced was more than the
environment could support. This lead to only the fittest offspring to
thrive. Over time, this led to future offspring to evolve with
advantageous.
Name two types of animal models that are used for genetics research.
Describe one trait each model possessed that made it useful for
genetics. - ANSWER>>> Mouse- similar genome to humans, easy to
breed.
Fruit Fly- affordable, short life, easy to breed and small genome
Explain briefly how the ideas of epigenesis and preformation directly
contradict each other - ANSWER>>> Epigenesis looks at how life is
formed in embryo by genetic material.
Preformation looks at how life occurs spontaneously without any
previous genetic material.
Diploid number (2N) - ANSWER>>> 46, the number of chromosome
an organism carries (2N)
Phenotype - ANSWER>>> an observable feature
Genotype - ANSWER>>> The set of alleles that produces a certain
trait
Alleles - ANSWER>>> Alternative forms. of genes caused by
mutations
Genes - ANSWER>>> Basic unit of heredity passed from parent to
offspring
,Chromosome - ANSWER>>> exists in pairs within the nucleus of the
cell
Whose experiment on PEA plants put him at the forefront of discovery
of modern genetics - ANSWER>>> Gregor MENDAL
Which of the following does not describe the chromosomal theory of
inheritance? (select all that apply) - ANSWER>>> -Chromosomes are
contained within genes that encode for all genetic traits.
-Chromosomes inherited from a father will be dominant over those
from the mother.
-The proteins within chromosomes are the chief drivers of genetic
inheritance
True or False: Nucleotides are the basic building blocks that make up
DNA. - ANSWER>>> True
Modern agriculture has benefited from the use of biotechnology
through the use of transgenic crops. What does this mean? -
ANSWER>>> It means that the nature of crops have been modified to
better benefit humans. We have been able to adjust certain models of
food and drugs to help us survive.
True or False: The theory of spontaneous generation posits that living
things can spontaneously generate from non-living things. -
ANSWER>>> true
Natural selection posits that organisms that have the most
advantageous characteristics will survive their environment. Do
humans have the same selective pressures for natural selection that
their animal counterparts do? Are humans still evolving? -
ANSWER>>> humans can still evolve however, it is a very slow
process in which it can occur but over generations before we can see
any progress.
, Cell theory was introduced by? - ANSWER>>> Matthias Schleiden &
Theodor Schwann
Charles Darwins publication on evolution is called: - ANSWER>>>
The Origin of species
Propose examples of certain traits that could benefit a mammal that
lives in a mountainous environment. - ANSWER>>> -Climb easily
-Good Balance
-Blend in with mountain colors
The ___ hypothesized that heredity and development depend on the
passing of genetic information via genes that are contained on ___ or
sex cells from each parent. - ANSWER>>> Chromosomal Theory,
gametes
Humans have a ___ number of 46, with a __ number of 23 -
ANSWER>>> Diploid,
haploid
If the normal color of a fruit fly is red, and the mutation causes a white
eye, then the red-eyed gene is referred to as the ___ gene, and the
white eyes are caused by a mutant ___ - ANSWER>>> Wild-type,
allele
Name the four nucleotides that make up DNA and indicate which base
pairs together - ANSWER>>> A, T
C, G
Corn and soybeans are 90% transgenic crops, what does this mean? -
ANSWER>>> They have advantages introduced by recombinant DNA
technology.
-better modified for better produce
A __ is carrier DNA in which gene can be inserted using specific ___ -
ANSWER>>> DNA vector,
Restriction enzymes
100% Verified | Updated | Portage Learning
Explain why Darwins theory of natural selection leads to survival of the
fittest offspring. Discuss what this means for future generations -
ANSWER>>> The number of offspring produced was more than the
environment could support. This lead to only the fittest offspring to
thrive. Over time, this led to future offspring to evolve with
advantageous.
Name two types of animal models that are used for genetics research.
Describe one trait each model possessed that made it useful for
genetics. - ANSWER>>> Mouse- similar genome to humans, easy to
breed.
Fruit Fly- affordable, short life, easy to breed and small genome
Explain briefly how the ideas of epigenesis and preformation directly
contradict each other - ANSWER>>> Epigenesis looks at how life is
formed in embryo by genetic material.
Preformation looks at how life occurs spontaneously without any
previous genetic material.
Diploid number (2N) - ANSWER>>> 46, the number of chromosome
an organism carries (2N)
Phenotype - ANSWER>>> an observable feature
Genotype - ANSWER>>> The set of alleles that produces a certain
trait
Alleles - ANSWER>>> Alternative forms. of genes caused by
mutations
Genes - ANSWER>>> Basic unit of heredity passed from parent to
offspring
,Chromosome - ANSWER>>> exists in pairs within the nucleus of the
cell
Whose experiment on PEA plants put him at the forefront of discovery
of modern genetics - ANSWER>>> Gregor MENDAL
Which of the following does not describe the chromosomal theory of
inheritance? (select all that apply) - ANSWER>>> -Chromosomes are
contained within genes that encode for all genetic traits.
-Chromosomes inherited from a father will be dominant over those
from the mother.
-The proteins within chromosomes are the chief drivers of genetic
inheritance
True or False: Nucleotides are the basic building blocks that make up
DNA. - ANSWER>>> True
Modern agriculture has benefited from the use of biotechnology
through the use of transgenic crops. What does this mean? -
ANSWER>>> It means that the nature of crops have been modified to
better benefit humans. We have been able to adjust certain models of
food and drugs to help us survive.
True or False: The theory of spontaneous generation posits that living
things can spontaneously generate from non-living things. -
ANSWER>>> true
Natural selection posits that organisms that have the most
advantageous characteristics will survive their environment. Do
humans have the same selective pressures for natural selection that
their animal counterparts do? Are humans still evolving? -
ANSWER>>> humans can still evolve however, it is a very slow
process in which it can occur but over generations before we can see
any progress.
, Cell theory was introduced by? - ANSWER>>> Matthias Schleiden &
Theodor Schwann
Charles Darwins publication on evolution is called: - ANSWER>>>
The Origin of species
Propose examples of certain traits that could benefit a mammal that
lives in a mountainous environment. - ANSWER>>> -Climb easily
-Good Balance
-Blend in with mountain colors
The ___ hypothesized that heredity and development depend on the
passing of genetic information via genes that are contained on ___ or
sex cells from each parent. - ANSWER>>> Chromosomal Theory,
gametes
Humans have a ___ number of 46, with a __ number of 23 -
ANSWER>>> Diploid,
haploid
If the normal color of a fruit fly is red, and the mutation causes a white
eye, then the red-eyed gene is referred to as the ___ gene, and the
white eyes are caused by a mutant ___ - ANSWER>>> Wild-type,
allele
Name the four nucleotides that make up DNA and indicate which base
pairs together - ANSWER>>> A, T
C, G
Corn and soybeans are 90% transgenic crops, what does this mean? -
ANSWER>>> They have advantages introduced by recombinant DNA
technology.
-better modified for better produce
A __ is carrier DNA in which gene can be inserted using specific ___ -
ANSWER>>> DNA vector,
Restriction enzymes
